7.4 oz./yd, 60/40 combed ring-spun cotton/polyester; Easy Tear(TM) label. Granite Heather is 55/45 combed ring-spun cotton/polyester. Collar hole detail; Front pocket with top opening; Ribbed sleeves and bottom band. This product meets the following Sustainable Style subcategory: Socially Conscious Manufacturing: This product was made in a facility that is WRAP certified. For breeds with larger chests, purchase one size up from weight range